my wireless does not reach above 54 Mb/s, while inside a N (300 Mb/s) network. I think the Atheros (AR9285) card is only capable of 150 Mb/s, but it doesn't reach above 54 for now.
I've never used a N card in a N enabled network, so I can't be of any concrete help to you, I don't know if and how all this stuff work. However, as far as I know, the usual tools for managing wireless devices (ie, iwconfig), support up to G networks.
I suggest to do some tests with 'iw', which is intended to be the replacement for iwconfig in the near future, and it supports N standard along with older versions. It's available in the ubuntu repositories, give it a try.
After the upgrade I noticed that I do not have the 2 finger scroll on my touchpad any more. This did not worked 'out of the box', so I adapted something in the past to make that work. I'll have to start looking how to enable this again.
You should be able to enable it through 'System'->'Preferences'->'Mouse' dialog.
One more thing I have... While on battery power, the gnome power saving settings dim the brightness after a while of inactivity. When I move the mouse, it comes back up. But when I set the brightness to a higher level than default, after waking up after inactivity it becomes default, so I have to set it back up again. It's nothing crucial though.
It seems that gnome-power-manager does not remeber the last used brightness, so after the inactivity it set back the default brightness value by default is 50%). The problem can be only fixed in gpm, so I suggest to file a bug report about it on gnome bugzilla
. Personally, I have disabled the 'dim when inactive' function, in order to workaround the problem.
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